POLYPROPYLENE RESIN COMPOSITIONS HAVING EXCELLENT FLOW AND IMPACT PROPERTIES AND POLYPROPYLENE MOLDING MANUFACTURED THEREFROM

摘要

A polypropylene resin composition, and a molded product using the composition are provided to improve impact resistance and fluidity without the deterioration of rigidity even by using a small amount of an impact modifier. A polypropylene resin composition comprises 40~98 parts by weight of a polypropylene resin or a block polypropylene resin containing an alpha-olefin of the carbon number 2~10; and 2~60 parts by weight of a star type styrenic block copolymer containing 3~10 weight% of styrene, having a molecular weight of 200,000~400,000 g/mol and having a branch number of 5~10. The block polypropylene resin is a highly crystalline poly propylene resin containing an alpha-olefin in a polypropylene resin. The styrenic block copolymer is a styrene-ethylene-butylene-styrene block copolymer.